Mastoiditis
Inflammation of the honeycomb-like mastoid bone in the skull just behind the ear. It is usually a complication of otitis media.
H70.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM H70.90 became effective on October 1, 2022.
This is the American ICD-10-CM version of H70.90 – other international versions of ICD-10 H70.90 may differ.